METHOD OF PROCESSING VANADIUM-CONTAINING RAW MATERIALS Russian patent published in 2000 - IPC

Abstract RU 2148669 C1

FIELD: hydrometallurgy; applicable in production of vanadium by recovery of vanadium from vanadium-containing raw materials. SUBSTANCE: method includes roasting of vanadium-containing raw materials, leaching of cinder with sulfuric acid in one stage and hydrolysis of obtained solutions. Roasting of raw materials is accomplished after wetting them with solution of sulfuric acid at temperature of 150-350 C. Consumption of sulfuric acid for process cycle is maintained to meet ratio by stages of roasting-leaching equal to (60-80)%:(20-40)%. EFFECT: higher recovery of vanadium into solution with lower power and reagent consumption. 2 cl, 1 tbl

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RU 2 148 669 C1

Authors

Kozitsyn A.A.

Plekhanov K.A.

Mosjagin S.A.

Sheveleva L.D.

Lebed' A.B.

Khodyko I.I.

Dates

2000-05-10—Published

1998-10-12—Filed